Installation manual

Simrad SP90
90
851-164510 / Rev.E
Speed log with RS-232 output
The sonar can also read the speed log data from a RS-232 serial
line with a standard NMEA 0183 telegram format. The telegram
can contain both the speed and the course data.
Refer to the cable connection drawing for termination of the
serial line data in the Sonar Interface Unit.
For connection to the speed log, refer to the applicable log
documentation.
Speed data from (D)GPS (RS-232)
The (D)GPS output data will normally contain the speed log
information. In such case, this serial line can be used for both
the position and speed data.
References
→ Speed log cable drawing, page 191
→ (D)GPS connection, page 92